Fist of all, there is no question that we need emunah. Emunah is a tool we use in aquiring the truth. Without emunah we can discount the most logical of proofs. Emunah is a spiritual concept and obviously if we can only go by physical proofs, then logical proofs which are not in the physical realm will be discounted as well.
My reading of this: I have proofs, but if they don’t stand up, we have Emunah so we don’t need proofs anyway.
That being the case, why bring proofs to begin with.
Put it this way, if you said you believe in Judaism because you have Emunah, I would have no argument with you. Even if I completely disagreed with the notion of religion through Emunah (which I don’t), I still couldn’t argue because it’s not an arguable position. But once you begin to bring proofs then they have to stand up to intellectual scrutiny.
The Wolf